Legendary History Prior to 1st Century BC
Beli Mawr and Llyr Llediath in Welsh Pedigrees
The Bartrum "Welsh Genealogies"
Bartrum's "Pedigrees of the Welsh Tribal Patriarchs"
A study in charting medieval citations
The Evolution of the "Padriarc Brenin" Pedigree
Generational Gaps and the Welsh Laws
Minimum Age for Welsh Kingship in the Eleventh Century
The Lands of the Silures
Catel Durnluc aka Cadell Ddyrnllwg
Ancient Powys
The Royal Family of Powys
The Royal Family of Gwynedd
The 5 Plebian Tribes of Wales
Maxen Wledig of Welsh Legend
Maxen Wledig and the Welsh Genealogies
Anwn Dynod ap Maxen Wledig
Constans I and his 343 Visit to Britain
Glast and the Glastening
Composite Lives of St Beuno
Rethinking the Gwent Pedigrees
The Father of Tewdrig of Gwent
Another Look at Teithfallt of Gwent
Ynyr Gwent and Caradog Freich Fras
Llowarch ap Bran, Lord of Menai
Rulers of Brycheiniog - The Unanswered Questions
Lluan ferch Brychan
The Herbert Family Pedigree
Edwin of Tegeingl and his Family
Angharad, Heiress of Mostyn
Ithel of Bryn in Powys
Idnerth Benfras of Maesbrook
Henry, the Forgotten Son of Cadwgan ap Bleddyn
The Muddled Pedigree of Sir John Wynn of Gwydir
The Mysterious Peverel Family
The Clan of Tudor Trevor
The Other "Sir Roger of Powys"
Ancestry of Ieuaf ap Adda ap Awr of Trevor
The Retaking of Northeast Wales
Hedd Molwynog or Hedd ap Alunog of Llanfair Talhearn
"Meuter Fawr" son of Hedd ap Alunog
The Medieval "redating" of Braint Hir
Aaron Paen ap Y Paen Hen
Welsh Claims to Ceri after 1179
The Battle of Mynydd Carn
Trahaearn ap Caradog of Arwystli
Cadafael Ynfyd of Cydewain
Maredudd ap Robert, Lord of Cedewain
Cadwgan of Nannau
Maredudd ap Owain, King of Deheubarth
What Really Happened in Deheubarth in 1022?
Two Families headed by a Rhydderch ap Iestyn
The Era of Llewelyn ap Seisyll
Cynfyn ap Gwerystan, the Interim King
The Consorts and Children of Gruffudd ap Llewelyn
The 1039 Battle at Rhyd y Groes
The First Wife of Bleddyn ap Cynfyn
Hywel ap Gronwy of Deheubarth
The Brief Life of Gruffudd ap Maredudd
Owain Brogyntyn and his Family
The Other Gwenwynwyn
Eunydd son of Gwenllian
Sandde Hardd of Mortyn
The Floruit of Einion ap Seisyllt
The Enigmatic Elystan Glodrydd
The Unofficial "History" of Elystan of Powys
Cowryd ap Cadfan of Dyffryn Clwyd
Owain ap Cadwgan and Nest ferch Rhys - An Historic Fiction?
The "sons" of Owain ap Cadwgan ap Bleddyn
The Betrayal by Meirion Goch Revisited
Gwyn Ddistain, seneschal for Llewelyn Fawr
The Men of Lleyn - How They Got There
Trahaearn Goch of Lleyn
Einion vs Iestyn ap Gwrgan - The Conquest of Glamorgan
The Royal Family of Glamorgan
Dafydd Goch ap Dafydd - His Real Ancestry
Thomas ap Rhodri - Father of Owain "Lawgoch"
The "Malpas" Family in Cheshire
Einion ap Celynin of Llwydiarth
Marchweithian, Lord of Is Aled, Rhufoniog
Osbwrn Wyddel of Cors Gedol
Bradwen of Llys Bradwen in Meirionydd
Ednowain ap Bradwen
Sorting out the Gwaithfoeds
Three Men called Iorwerth Goch "ap Maredudd"
The Caradog of Gwynedd With 3 Fathers
Who Was Sir Robert Pounderling?
Eidio Wyllt - What Was His Birthname?
The Legendary Kingdom of Seisyllwg
The Royal Family of Ceredigion
Llewelyn ap Hoedliw, Lord of Is Cerdin
The Ancestry of Owain Glyndwr
Welsh Ancestry of the Tudor Dynasty
Gruffudd ap Rhys, the Homeless Prince
The Children of Lord Rhys
Maredudd Gethin ap Lord Rhys
The 'Next Heir' of Morgan of Caerleon
Pedigree of the ancient Lords of Ial
The Shropshire Walcot Family
Pedigree of "Ednowain Bendew II"
Pedigree of Cynddelw Gam

       Although Bartrum had not yet discovered, when he wrote his "Patriarchs" paper in 1963, that there were two men named Cadwgan Fantach who share a common ancestor, he did present two separate pedigrees:
        (1) "Kadwgon vantach ap Kadwgon ap Llywelyn ap Gruffudd ap Ridid ap Edelvrych ap Peredur peiswerdd arglwydd Keredigion uchaf"
        (2) "Kadwgon vantach o Lannddewi vrevi ap Gruffudd ap Maredudd ap Einion ap Rhys ap Karedic ap Klodrydd ap Gwallter ap Pill ap Predyr peisswyn ior Karedigion"
         In his notes, Bartrum said:
         "Cadwgan Fantach of Llanddewi Brefi, born c. 1200.  The male line ended with his son Maredudd, who left three heiresses.  See Dwnn i, 82, 94, 222, etc.  [Pedigree (2)] seems to show confusion with [the pedigree for Rhys Chwith]"
          When Bartrum published his Welsh Genealogies AD 300-1400 in 1974, he charted separate men for his two pedigrees, both descended from a consolidated Peredur Beiswrydd/Beisgwyn but from different sons of Peredur.  There, he dated the Cadwgan Fantach who had the son Maredudd to c. 1200, while he makes Cadwgan Fantach II born c. 1300 and the man who lived in Llanddewi Brefi in the commote of Pennardd.
          We would date the earlier Cadwgan Fantach (the toothless) to c. 1205 based on our analysis of the marriage matches cited for his son and granddaughters.  His son Maredudd married Gwenllian[1] ferch Maredudd ap Owain ap Gruffudd ap Lord Rhys, a lady born c. 1240.  The daughters of Maredudd married men[2] born form c. 1250 to c. 1260, so these ladies should be dated c. 1265/70.  The pedigree (Bartrum's #1) which he proposes for this Cadwgan Fantach is a generation too short (he dates Peredur 25 years earlier than our estimate).  Alternate pedigrees[3], which Bartrum mentioned, substitute the name Maredudd for Rhiryd as the grandson of Peredur; we suggest both names belong in the pedigree although it is only a guess which of the two was the father of the other. 
         We propose the following chart:
                           995  Peredur Beisgwyn
                             1025  Edelfrych
                              1055  Rhiryd
                            1085  Maredudd
                            1115  Gruffudd
                            1145  Llewelyn
                            1175  Cadwgan
                          1205  Cadwgan Fantach
                            1235  Maredudd
                    1265/70  Three daughters
           The man whom Bartrum calls Cadwgan Fantach II is the one whose residence is cited as Llanddewi Brefi.  We estimate his birthdate as c. 1310.  He lived near the Tregarron manor of the Clement family whose men were in the military service of the English Crown, and he married a daughter of the Lord of Pennardd, Sir Robert Clement[4], son of the second Geoffrey Clement. While not named in the sources, this lady was born c. 1325. 
           The Bartrum pedigree (his #2) is a generation short as given.  Other sources[5] cite a "Ceredig ap Gwallter ap Pyll ap Peredur Beisgwyn", so we would insert Ceredig between "Klodrydd" and "Gwallter" as:
                             995  Peredur Beisgwyn
                                1025  Pyll
                              1055  Gwallter
                              1085  Ceredig
                              1120  Clodrydd
                              1150  Ceredig
                                1180  Rhys
                               1215  Einion
                             1245  Maredudd          Geoffrey Clement II 1265
                                           l                            l
                              1275  Gruffudd           Sir Robert Clement  1293
                                           l                            l
                        1310  Cadwgan Fantach II====daughter  1325
         In our analysis of Bartrum's pedigree for the common ancestor of these men, we shall present our reasons for identifying him as Peredur Beisgwyn (not Beiswrydd) and for dating his birth c. 995.

[1] Dwnn ii, 23
[2] Pen. 127,192 says "Elen ferch Cadwgan Fantach married Maredudd Fychan ap Maredudd".  Pen. 131, 295 extends his ancestry to "Maredudd ap Richard ap Maredudd ap Rhydderch"; Pen. 132,127 cites "Rhydderch ap Bleddri Latimer"; Pen. 131, 81 completes the ancestry "Bleddri ap Cadifor Fawr.  Our research finds that Bleddri Latimer was a son of Bleddri ap Cadifor Fawr.
     Dwnn i, 222 says "Sian ferch Cadwgan Fantach married Iorwerth ap Dafydd ap Einion ap Moriddig ap Dafydd ap Maredudd Fras ap Rhydderch ap Tewdwr; Rhydderch was a brother of King Rhys ap Tewdwr of Deheubarth.
     Dwnn i, 15 and 81/82 cite "Ethlyw ferch Cadwgan Fantach married Ieuan ap Gruffudd Foel; Pen. 131, 200 extends that to "Gruffudd Foel ap Gruffudd ap Iorwerth ap Cadifor; Pen. 131,217 completes his ancestry as "Cadifor ap Gawithfoed of Meirionydd"
[3] Pen. 132, 209; Pen. 140, 205
[4] Pen. 177, 346 & 352
[5] Pen. 131, 258; Pen. 140,277